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g� m w M M M MM m m m m m m r MM M <br />HISTORICAL SUMMARY OF ANALYTICA <br />GROUNDWATER <br />FOOTHILL SANITARY LANDFILL <br />MW -1A <br />Units: mg/l, unless noted <br />Sample Designation MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 MW -1 <br />Sampling Date 7/7/99 10/20/99 3/8/00 5/11/00 7/13/00 10/9/00 1/15/01 4/30/01 8/2/01 10/29/01 2/6/02 4/30/02 8/1/02 10/14/02 1/29/03 5/30/03 8/13/03 1/22/04 7/22/04 <br />Monitoring and Field Parameters <br />pH (std. units) (field) <br />7.77 <br />8.06 <br />7.37 <br />7.52 <br />8.5 <br />6.61 <br />7.41 <br />6.92 <br />8.09 <br />6.29 <br />6.91 <br />6.79 <br />7.02 <br />6.74 <br />6.7 <br />7.81 <br />7.42 <br />7.04 <br />7.11 <br />Electrical Conductivity (umhos/cm) (field) <br />236 <br />237 <br />237 <br />242 <br />240 <br />240 <br />264 <br />710 <br />220 <br />400 <br />100 <br />280 <br />270 <br />250 <br />379 <br />234 <br />208 <br />231 <br />289 <br />Temperature (°C) (field) <br />20.1 <br />21.3 <br />18.2 <br />23.3 <br />20.5 <br />19.8 <br />17.8 <br />20.0 <br />20.4 <br />19.2 <br />16.6 <br />18.6 <br />20.7 <br />20.4 <br />16 <br />23.8 <br />21.6 <br />16.5 <br />21.1 <br />Turbidity (NTU) (field) <br />1.43 <br />1.23 <br />1 <br />4.02 <br />0.49 <br />0.27 <br />2.51 <br />12.4 <br />10 <br />11.7 <br />6.7 <br />7.1 <br />3.4 <br />6.9 <br />2.9 <br />0.7 <br />12.6 <br />13.7 <br />6.74 <br />Chloride <br />6.7 <br />6.09 <br />6.79 <br />6.74 <br />6.03 <br />4.29 <br />6.55 <br />6.23 <br />5.8 <br />7 <br />7.3 <br />6.4 <br />6.4 <br />9.2 <br />6.7 <br />NA <br />6.4 <br />9.5 <br />6.7 <br />Nitrate -Nitrogen <br />2 <br />2.44 <br />2.37 <br />2.51 <br />2.28 <br />3.65 <br />2.7 <br />2.31 <br />2.5 <br />2.3 <br />3 <br />2.8 <br />2.9 <br />12 <br />3.2 <br />NA <br />3.3 <br />1.4 <br />3.1 <br />Total Dissolved Solids <br />182 <br />187 <br />180 <br />194 <br />186 <br />184 <br />183 <br />219 <br />180 <br />160 <br />170 <br />190 <br />170 <br />360 <br />180 <br />NA <br />170 <br />180 <br />190 <br />Sulfate <br />6.3 <br />7.43 <br />7.6 <br />7.55 <br />6.48 <br /><0.021 <br />7.02. <br />6.73 <br />6.7 <br />7 <br />7.6 <br />5.2 <br />5.9 <br />5.8 <br />6.5 <br />NA <br />6.3 <br />15 <br />5.4 <br />Volatile Organic Compounds (ug <br />Benzene <br /><I.0 <br /><0.04 <br /><0.05 <br /><0.04 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.14 <br /><0.05 <br /><0.05 <br /><0.20 <br /><0.28 <br />NA <br /><0.28 <br /><0.28 <br /><0.28 <br />Bromochloromethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Bromodichloromethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Bromoform <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Bromomethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Carbon Tetrachloride <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Chlorobenzene <br />2.6 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.16 <br /><0.07 <br /><0.07 <br /><0.2 <br /><0.32 <br />NA <br /><0.32 <br /><0.32 <br /><0.32 <br />Chloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Chloroform <br /><0.83 <br /><0.06 <br /><0.07 <br />0.162* <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.18 <br /><0.07 <br /><0.07 <br /><0.3 <br /><0.37 <br />NA <br /><0.37 <br /><0.37 <br /><0.37 <br />Chloromethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.14 <br /><0.14 <br /><0.3 <br /><0.18 <br />NA <br />(0.19*) <br />0.18 <br />0.18 <br />Dibromochloromethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2-Dibromo-3-chloropropane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2-Dibromoethane (EDB) <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Dibromomethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2 -Dichlorobenzene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,3 -Dichlorobenzene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,4 -Dichlorobenzene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.11 <br /><0.11 <br /><0.23 <br /><0.II <br /><0.11 <br /><0.2 <br /><0.46 <br />NA <br /><0.46 <br /><0.46 <br /><0.46 <br />Dichlorodifluoromethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1-Dichloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2-Dichloroethane (EDC) <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1-Dichloroethene <br /><0.72 <br /><0.04 <br /><0.04 <br /><0.05 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.12 <br /><0.06 <br /><0.06 <br /><0.2 <br /><0.24 <br />NA <br /><0.24 <br /><0.24 <br /><0.24 <br />cis-1,2-Dichloroethene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />trans-1,2-Dichloroethene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2-Dichloropropane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />cis-1,3-Dichloropropene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />trans-1,3-Dichloropropene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Ethylbenzene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Hexachlorobutadiene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Methylene Chloride <br />NA <br /><0.03 <br />0.0448* <br /><0.03 <br /><0,06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br />(2.4) <br />(0.15*) <br /><0.06 <br /><0.3 <br /><0.23 <br />NA <br />1014*) <br /><0.23 <br /><0.23 <br />Methyl tert-Butyl Ether <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.0859* <br /><0.08 <br /><0.08 <br /><0.18 <br /><0.08 <br /><0.08 <br />5.3 <br /><0.36 <br />NA <br /><0.36 <br /><0.36 <br /><0.36 <br />Napthalene <br />NA <br />NA <br />NA <br />NA <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.46 <br /><0.10 <br /><0.10 <br /><0.3 <br /><0.93 <br />NA <br /><0.93 <br /><0.93 <br /><0.93 <br />Styrene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1,1,2 -Tetrachloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1,2,2 -Tetrachloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Tetrachloroethene (PCE) <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.08 <br /><0.08 <br /><0.22 <br /><0.08 <br /><0.08 <br /><0.3 <br /><0.44 <br />NA <br /><0.44 <br /><0.44 <br /><0.44 <br />Toluene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.178* <br /><0.07 <br /><0.07 <br /><0.16 <br /><0.07 <br /><0.07 <br /><0.2 <br /><0.32 <br />NA <br /><0.32 <br /><0.32 <br /><0.32 <br />1,2,4-Trichlorobenzene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1,1 -Trichloroethane (TCA) <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1,2 -Trichloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />n:\consulting\data\shared\projects\xls\qmr\79\791289\FH-Hist.xls <br />